Re: post 2.6.7 BK change breaks Java?

[Brian Gerst <bgerst@didntduck.org>]

Jesper Juhl wrote:
> On Sun, 11 Jul 2004, Jesper Juhl wrote:
> 
> 
>>On Sun, 11 Jul 2004, Grzegorz Kulewski wrote:
>>
>>
>>>On Sun, 11 Jul 2004, Jesper Juhl wrote:
>>>
>>>
>>>>On Fri, 9 Jul 2004, Jesper Juhl wrote:
>>>>
>>>>
>>>>>On Fri, 9 Jul 2004, Con Kolivas wrote:
>>>>>
>>>>>
>>>>>>but I suspect it's one of those possibly interfering. Looking at the
>>>>>>patches in question I have no idea how they could do it. I guess if you
>>>>>>can try backing them out it would be helpful. Here are links to the
>>>>>>patches in question.
>>>>>>http://ck.kolivas.org/patches/2.6/2.6.7/2.6.7-ck5/split-out/1100_ip_tabl
>>>>>>es.patch
>>>>>>http://ck.kolivas.org/patches/2.6/2.6.7/2.6.7-ck5/split-out/1105_CAN-200
>>>>>>4-0497.patch
>>>>>>http://ck.kolivas.org/patches/2.6/2.6.7/2.6.7-ck5/split-out/1110_proc.pa
>>>>>>tch
>>>>>
>>>>>Thanks Con, I'll try playing with those tomorrow (got no time tonight),
>>>>>and report back.
>>>>>
>>>>
>>>>Ok, got them all 3 backed out of 2.6.7-mm7 , but that doesn't change a
>>>>thing. The JVM still dies when I try to run eclipse.
>>>
>>>I can run Eclipse without any problems on 2.6.7-bk20-ck5 + few other not
>>>related patches. Maybe try using non -mm? Try 2.6.7-bk20 and then try
>>>reverting some patches. Maybe there is some other problem in -mm that
>>>gives similar results?
>>>
>>
>>with plain 2.6.7-bk20 I see the issue, same with 2.6.7-mm7. Reverting
>>http://linux.bkbits.net:8080/linux-2.6/cset@1.1743 from -mm7 fixes the
>>issue. I'm currently building 2.6.7-bk20 minus that cset and I'll report
>>back on the results of that in a few minutes.
>>
> 
> 2.6.7-bk20 minus the cset works.
> 
> Testing with 2.6.8-rc1 and backing out one or both of the changes in the
> cset I get these results :
> 2.6.8-rc1       - vanilla                                       - breaks Java
> 2.6.8-rc1-jju1  - both changes backed out                       - works
> 2.6.8-rc1-jju2  - only first change (sys_rt_sigsuspend) applied - works
> 2.6.8-rc1-jju3  - only second change (sys_sigaltstack) applied  - breaks Java
> 
> --
> Jesper Juhl <juhl-lkml@dif.dk>

Looks like a GCC (gcc version 3.4.1 20040702 (Red Hat Linux 3.4.1-2)) 
screwup:

sys_sigaltstack:
         movl    4(%esp), %eax
         movl    8(%esp), %edx
         movl    56(%esp), %ecx
         jmp     do_sigaltstack

The offsets should be 4 more, to account for the return address on the 
stack.

--
				Brian Gerst